The most common and most likely answer to this crossword clue is the 11 letter word PROVISIONAL
I've seen this crossword clue in The Times
P
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V
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More clues leading to the result PROVISIONAL
Buddy explains!

The straight part
We know that "Temporary" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case temporary = provisional.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does PROVISIONAL mean?
PROVISIONAL noun- A postage stamp issued locally before an official issue is released.
- An interim denture.
- Temporary, but with the intention of eventually becoming permanent or being replaced by a permanent equivalent.